If you have more than one child, and both kids are 6+ years of age and were tested, what did you get in terms of score differences on full scale and different components?

I would like to get just a general idea. I don't need detailed scores. The research says that siblings are 10 points apart typically, but I think this is for the mean IQ population. Would be great to see what the gifted range is like in this area.

Also, if both of your kids are gifted, do you think this was more nurture or nature? Are you gifted yourself? Did you always think your kids would be gifted or it was a surprise?